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受剪薄木板在变载下的挠度
引用本文:李静辉 刘广仁. 受剪薄木板在变载下的挠度[J]. 东北林业大学学报, 1992, 20(5): 94-100
作者姓名:李静辉 刘广仁
作者单位:东北林业大学(李静辉,刘广仁,卢宝贤),东北林业大学(张斌)
摘    要:通过蠕变实验资料的计算。预测木材在变载作用下,粘弹性应变的变化规律。研究中采用了广义开尔文体模型,总应变可由每个时刻应变增量的总和计算出来。结果表明:模型常数以及在变载作用下的实测挠度值和模型的理论值有较高的拟合度。

关 键 词:木材 变载 蠕变柔量 粘弹性模型

DEFLECTION OF SHEARED WOOD PLATE UNDER THE CHANGING LOAD
Li Jinghui Liu Guangren Lu Baoxian Zhang Bin. DEFLECTION OF SHEARED WOOD PLATE UNDER THE CHANGING LOAD[J]. Journal of Northeast Forestry University, 1992, 20(5): 94-100
Authors:Li Jinghui Liu Guangren Lu Baoxian Zhang Bin
Affiliation:Northeast Forestry University
Abstract:Through the calculation of the data of creep test, the viscoelastic strain of wood is evaluated under the chaning load. The model of the generalized Kelvin system is used in the study. The total strain can be calculated by summing up the increment of strain at each time. The results show that: The model constants and the measured deflections under the changing load are very close to the model theoretical values.
Keywords:Timber  Changing load  Creeping compliance  Viscoelastic model
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